mediatek: remove "Ralink" from the target name

None of the supported chips have been sold under the Ralink brand.

Signed-off-by: Felix Fietkau <[email protected]>

target/linux/mediatek/Makefile

@@ -4,7 +4,7 @@ include $(TOPDIR)/rules.mk
 
 ARCH:=arm
 BOARD:=mediatek
-BOARDNAME:=MediaTek Ralink ARM
+BOARDNAME:=MediaTek ARM
 SUBTARGETS:=mt7622 mt7623 mt7629 filogic
 FEATURES:=dt-overlay emmc fpu gpio nand pci pcie rootfs-part separate_ramdisk squashfs usb